Lacing-stud



' No Model.)

A..MATH1S0N. LAGING STUD.

Patented Aug. 28, ,1894.

metallic head thereunder.

LUNITED STATES'v PATENT OFFICE. y

ARTHUR MATHISON, OF SPRINGFIELD,'MASSACHUSETTSI LACINGJSTUD.

SPECIFICATION forming part of Letters Patent No. 525,152, dated August28, 189 4.

v APPHGR'GQD filed February 16, 1894. Serial No. 500,416. (No model.) Y

To all whom it may concern.-

Be it known that I, ARTHUR MATHIsoN, a citizen of the United States,residing at Springfield, in the county of Hampden and State ofMassachusetts, have invented. new anduseful Improvements inLacing-Studs, of which the following is a specification.

This invention relates to lacing studs and analogous fastening devicesfor shoes and other articles; the obj ect being to improve theconstruction of such objects, all as hereinafter fully set forth.

In the drawings forming part of this specication, Figure 1 is a planview, and Fig. 2 is a front elevation of a lacing stud, constructedaccording to my invention, lthe covering of the stud illustrated in Fig.1 being partly broken away to show a portion of the Fig. 3 is asectional view of the studon line 3-3, of Fig. 1L Fig. 4 is a plan viewof the metallic blank from which the lacing stud is formed. Fig. 5 is asectional view axially through an eyelet which embodies features ofthisinvention,

Fig. 6 being a plan view of the same with-ak portion of the plasticmaterial covering the top rim of the eyelet broken away. Said iiguresshow the stud greatly enlarged.

Certain of the improvements herein de# scribed and shown are applicableto the heads 4 head portion, D, of a general circular form having aseries of corrugations at its border; and the part, E, located betweensaid parts, A and D, and integral with the latter, of rectangular form,and from which that part of the stud structure designated the post isformed..

In view of the foregoing description of said blank, the base of thestud, under the he'ad,

is designated by A, the metallic part of the head by D, and the post byE. y

The above mentioned corrugations are constituted by striking up in adie, from the under side of the marginal portion of the head,

and without severing or slitting the metal, suitably spacedprotuberances, 10, which, of course, are hollow leaving the space, 12,beneath, and which leave at the top the intermediate depressions, 13,13, all to the end of providing, as below described, for permanentlysecuring to said head a covering of non-metallic plastic material.

In the manufacture oflacing studs from sheet metal, as heretoforepracticed, the post, E, which constitutes the head and Vbase unitingelement of the stud, has been made substantially dat on its innersurface, or that surface which receives the lacing; but by the improvedmanner of constructing said post, herein set forth, the said post isproduced in substantiallya cylindrical form, or sofnearly approximatingthat shape (see dotted lines showing the elliptical form of the post inFig. 1) that the side against which the lacing is drawn when the stud isin -use upon a shoe, or other article, practically is circular;consequently, the best conditions are presented for the durability ofthe lacing, and to effect other advantageous results below referred toand to obviate, entirely, the undue wear of the lacing when used againsta stud having said flat lacing surface. The above mentionedsubstantially cylindrical form of said post is secured by providing thesaid intermediate rectangularly formed element of the blank, shown inFig. 4, the extremities, 15, 15, of which central element are bentforward between the head, D, and the base, A, of the stud, therebyproducing said substantially cylindrical form, as shown, andconsequently forming the said convex face against which the shoe lacingis invariably drawn, which face presents no abrading surface, thusconducing to the greatest durability ofthe lac.

ing and providing such a bearing surface therefor yas conduces to aperfect freedomv of motion of the lacing without the wearing effectwhich is ordinarily produced by the use of a flat-sided, or sharp-edged,post.

In constructing the metallic part of the stud IOO and the head, D, isbent to bring it directly over the base, A, o1' to the position shown inFigs. 2 and 3. This position of a large portion of the post between thehead andthebase of the stud toward the center` thereof, supports thehead against accidental deflection, and thus preserves the'wide openingbetween the f head and the base.

Fig. 4 illustrates the under, or back side of the head, D, and the topof the base, A.

The metallic portion of the stud, havingl been bent to the `form -aboveindicated, is then 'placedona suitableplate or die on `which Y the underside of the head `of the studliesf' closely, and there is then appliedtot'heouter side `ot' said head, a covering, z, of plasticr materialsimilar to 'hardrub'berg or'o'ther well known plastic compositions whichare vsof-f tened 4by heat, and said material, by the aid of a hot die'and pressure, is molded onto they stud-head, substantially `int'he'form showny in Figs. 2, 3, and 4, and is thereby `caused "to coverthe head and to adapt itself tothefform of `said marginal upset, `hollowprotuberancesf-tofenterthe intermediate depressions,

and to extend slightly beyond the edge o'f the corrugated metallic partof the headof `the plastic material, while portions of theplastic lmaterial, assuming the form of an internal gear, embed themselves, asseen atf20 in Figs. 2, 3, and 4c, in the depressions constituted beneaththe upset protuberances of the 'corru-Q Upon becomingcool, thefsaidcovering, h, of plastic material, His firmly and pergations.

manently fixed'on the head, D, of the stud.

The said plastic `materiahasis `Well known,- may be made `of variouscolors Iaccording to` the color of the leather,or other material `onwhich it is to be Worn.

As shown in Figs. 2, 3, and J5 the plastic material will ow over theedge of the lcor-` rugated metallic head, land nnder'theraised j partsof the radial corrugations thus lling the spaces 12, but this materialwill not flow under the depressed portions 13 of the 'head as theseparts 13 rest on the die. A bottom view of thecompleted head will showradial metallic ribs running from near the central postto near theperiphery of the head, and between these ribs are portionsof theplasticmaterial.

From theforegoing description of the means herein-setforthfor uniting asuitable plastic covering to the head of the stud, herein shown, it is`obvious that the same meansfmay be advantageously employed forattaching covering'layers of plastic `material onto the metal base `ofbuttons, and `analogous `art-icles; and in Figs. 5 and 6 the same ideaof means is utilized in an obvious manner in applying and anchoring theplastic covering upon the metallic annular rim of an `eyelet which hasthe marginal upset indentations and intermediate depressions.

There have been, heretofore, numerous constructions, 1neans,'andmethodsof afxing to lacing studs, buttons, and eyelets, a layer or bodyof plastic material, resembling rubber for ycelluloid to constitute thewearing face. Many of these, while ingenious, and fairly elcient aftertheir production, are produced -by the use of expensivedies andmachinery which are necessarily slow and involve mechanical operations`which practically prohibit the production of the studs, or eyelets, ata marketable 'figure;and, again, on the `other hand, many oftheplasticfaced st-uds which lhave `been produced have possessed features which`rendered vthem undesirable, respecially lin pointof .a structurallyweaktened metallic 'foundation 'for the plastic, and 1an inefficientcapability for thefanchoring-of ltheplastic upon themetallicsupportingbody therefor. But vbythe `exercise of the-,present Iinventionth'epart of the studlto receive the lplastic material 'may Abe`formed,as shown, lmost cheaply and rapidly Aand withoutweakeni'ng, 'buton the iother hand, strengthening the rim of the head; moreover,constructions of `dies for applying and setting the ,plastic may beemployed `which lare, iirst, .simpler and cheaperthan any heretofore*known or used; secondly, capable of more rapid cperation than fit fisbelieved has been heretoforepossible, and, thirdly, `adapted to so coactwith the peculiarly constructed metallic head asto insure the propersupport of `the corrugated rim while the `plasticis "being set with hardpressure t'hereagainst and thereupon. This latter 'mentioned provisionof having the partof the stud receivingtheplastic material tirmlysupported by one member of the die `while theother die member is hardpressing the .plasticto its anchoring engage ment, `and moldingthe sameto external form, and wi-thou'thaving to depend upon the rigidity of thethin imeta'l head, is very important and valuable.

`Having thus described my invention, what I claim, and desire "to secureby Letters .Patent, is-

The eyelet or stud'having a metallic 'head with 'elevations `anddepressions extending outward fromnear the post to the periphery ofsaidmetallic'head, anda plastic Vcover eX- tending over `saidemetallichead and outside theperiphery thereof, andtilling the recesses under theelevated portions of the metal, the depressions `in the metalbeingexposed, substantially as described.

ARTHUR MATHISON. Witnesses:

H. A. CHAPIN, K. I. CLEMONs.

